Answer:
= a) chirality
Explanation:
Because chiral molecules has four different atoms bonded to the central atom, hence they rotate plane polarized light and produces non-superimposable mirror images
Answer:
The mean velocity is 13 ft/s.
The Reynolds number is 88,583 and it is dimensionless.
Explanation:
We have water flowing in a pipe of 1.05 in diameter.
The density is ρ=62.3 lb/ft and the viscosity is 1.2 cP.
The mean velocity can be calculated as

The Reynolds number now can be calculated for this flow as

being ρ: density, u: mean velocity of the fluid, D: internal diameter of the pipe and μ the dynamic viscosity.
To simplify the calculation, we can first make all the variables have coherent units.
<em>Viscosity</em>

<em>Diameter</em>

Then the Reynolds number is

Mixtures to pure substances: separation processes
<span>Pure substances to mixtures: mixing </span>
<span>Both are physical changes, since most of those processes do not require chemical changes in the separation processes.</span>
Below are the steps involved in synthesis of Lidocaine.
Answer : The partial pressure of X and Y gases are, 0.525 and 1.575 atm respectively.
Explanation : Given,
Moles of X = 2.0 mole
Moles of Y = 6.0 mole
Total pressure = 2.1 atm
Now we have to calculate the mole fraction of X and Y.


and,


Now we have to calculate the partial pressure of X and Y.
According to the Raoult's law,

where,
= partial pressure of gas
= total pressure of gas = 2.1 atm
= mole fraction of gas


and,


Thus, the partial pressure of X and Y gases are, 0.525 and 1.575 atm respectively.